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The Conjunction Fallacy from a Safety Culture Perspective - An Experimental Study
Stockholm University, Faculty of Social Sciences, Department of Psychology.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Heuristic estimates of probabilities may be an obstacle to decision making within High Reliability Organizations. Accident reports have found that two from each other separate phenomenon, Blame Culture and Type 1 processing constitutes a particularily serious threat to decision making. The present study (N = 70) investigated if a perceived risk of negative feedback and cognitive load would lead to more heuristic estimates on the Conjunction Fallacy. Three experiment conditions were included in the study: Negative feedback, cognitive load and control. The results were non-significant for both negative feedback and cognitive load. Furthermore, the estimated negative affect was higher when violations to the Conjunction Rule was made. Previous studies showing that high scores on the Cognitive Reflection Test (CRT) indicate less sensitivity to conjunction fallacies, were replicated. The present study concluded that the CRT may be a strong predictor of the Conjunction Fallacy. 

Place, publisher, year, edition, pages
2016. , 18 p.
Keyword [en]
Safety Culture, Blame Culture, Criticism, Negative feedback, mood, affect, CRT, Cognitive Reflection Test, The Conjunction Fallacy, Experiment, High reliability organizations, HRO
National Category
URN: urn:nbn:se:su:diva-133791OAI: diva2:971271
2016-06-03, Psykologiska institutionen, Frescati Hagväg 8, Stockholm, 13:36
Available from: 2016-11-10 Created: 2016-09-15 Last updated: 2016-11-10Bibliographically approved

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